diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27ff4a5e56..7a79762d68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 
 ## [Unreleased]
 
+## [2024.14-crunch-patched] (2024-12-17)
+
+- Fixes an issue to allow previously registred clients to connect to latest nym-nodes
+- Fixes compatibility issues between nym-nodes and older clients
+
 ## [2024.14-crunch] (2024-12-11)
 
 - Merge/release/2024.14-crunch ([#5242])
diff --git a/nym-node/Cargo.toml b/nym-node/Cargo.toml
index 897a70cb0c..6908bcd023 100644
--- a/nym-node/Cargo.toml
+++ b/nym-node/Cargo.toml
@@ -3,7 +3,7 @@
 
 [package]
 name = "nym-node"
-version = "1.2.0"
+version = "1.2.1"
 authors.workspace = true
 repository.workspace = true
 homepage.workspace = true
diff --git a/service-providers/authenticator/src/mixnet_listener.rs b/service-providers/authenticator/src/mixnet_listener.rs
index 0c4d8dfb0f..1209c4cd17 100644
--- a/service-providers/authenticator/src/mixnet_listener.rs
+++ b/service-providers/authenticator/src/mixnet_listener.rs
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use std::{
+    net::IpAddr,
     sync::Arc,
     time::{Duration, SystemTime},
 };
@@ -11,7 +12,9 @@ use crate::{error::AuthenticatorError, peer_manager::PeerManager};
 use defguard_wireguard_rs::net::IpAddrMask;
 use defguard_wireguard_rs::{host::Peer, key::Key};
 use futures::StreamExt;
-use nym_authenticator_requests::latest::registration::RegistrationData;
+use nym_authenticator_requests::{
+    latest::registration::RegistrationData, v4::registration::IpPair,
+};
 use nym_authenticator_requests::{
     latest::registration::{GatewayClient, PendingRegistrations, PrivateIPs},
     traits::{
@@ -233,25 +236,24 @@ impl<S: Storage + Clone + 'static> MixnetListener<S> {
 
         let peer = self.peer_manager.query_peer(remote_public).await?;
         if let Some(peer) = peer {
-            let private_ipv4 = peer
+            let allowed_ipv4 = peer
                 .allowed_ips
                 .iter()
                 .find_map(|ip_mask| match ip_mask.ip {
                     std::net::IpAddr::V4(ipv4_addr) => Some(ipv4_addr),
                     _ => None,
-                });
-            let private_ipv6 = peer
+                })
+                .ok_or(AuthenticatorError::InternalError(
+                    "there should be one private IPv4 in the list".to_string(),
+                ))?;
+            let allowed_ipv6 = peer
                 .allowed_ips
                 .iter()
                 .find_map(|ip_mask| match ip_mask.ip {
                     std::net::IpAddr::V6(ipv6_addr) => Some(ipv6_addr),
                     _ => None,
-                });
-            let (Some(allowed_ipv4), Some(allowed_ipv6)) = (private_ipv4, private_ipv6) else {
-                return Err(AuthenticatorError::InternalError(
-                    "there should be one private IP pair in the list".to_string(),
-                ));
-            };
+                })
+                .unwrap_or(IpPair::from(IpAddr::from(allowed_ipv4)).ipv6);
             let bytes = match AuthenticatorVersion::from(protocol) {
                 AuthenticatorVersion::V1 => v1::response::AuthenticatorResponse::new_registered(
                     v1::registration::RegistredData {